Thanks, Beerstalker. I've been in contact with Romeo. Unfortunately, we've not worked out a resolution yet. Also, I'm not sure if there's a definitive schedule for getting alternate code sets registered in the Harmony database. It sounds like one of those "when we get around to it" kind of things. I also realize that it's probably not the highest priority on the Logitech side either!
For those following this thresd, you should know:
IF you have other Sony devices in your setup, the default code set (A) in the PS3IRx may create conflicts with those devices. In my case, it's a PS2 (both the PS2 and the PS3 share many of the same IR codes--including POWER ON), but the conflicts can occur with other Sony devices (Blu-Ray players, DVD players) as well.
Fortunately... Schmartz responsibly notes this potential limitation and provides three alternate code sets to resolve these conflicts. That's works fine if your remote supports programming with PRONTO codes.
Unfortunately... There is no way to input PRONTO codes into a Harmony remote. The only way to program a Harmony remote (that I'm aware of) is via the Harmony application and the Harmony database (which is jealoulsy guarded by Logitech). Only they can make changes to the database. And only they can implement the alternate code sets.
Unfortunately... Those code sets have not yet been registered in the Harmony database.
Fortunately... There's a workaround. The PS3IR-1000 has an emitter. Theoretically, you could load one of the alternate code sets onto the device and have it output the signal (via IR) to "teach" your Harmony remote the code set. It is, after all, a "learning" remote. It would be a pain, but the approach is sound.
Unfortunately... I have the PS3IR-500 (which has no emitter), not the 1000. Theoretically, I could spend another $80 to get the 1000, but after spending $40 on the 500 with the expectation that it would work, I'm not inclined to throw any more money at this solution.
Consequenty... I'm SOOL unless the clever folks at Schmartz have another idea or unless they can light a fire under Logitech to get the codes implemented. I plan to contact Logitech to encourage them to do so.
Otherwise... I'm back to my old solution (using a Nyko Blu-Wave USB).